Tiltable casing for concrete construction



July 11, 1933. RElLER 1,918,182

TILTABLE CASING FOR CONCRETE CONSTRUCTION Filed April 19, 1932 D 10 may be employed,

Patented July 11, 1933 FRANZ EILERQOF DRESDEN, GERMANY TILTABLE CASING FOR CONCRETE CONSTRUCTION Application filed April 19, 1932, Serial No.

This invention relates to a tiltable casing for concrete constructions, which presents the advantage over the usual known casings that it can be adapted to the progress of the structure or building element and consequently according to the building process by merely being tilted. The invention entirely overcomes the objection inherent in the usual casings which consists in that the entire surface of the finished structure must be encased at the same time or, if this is avoided by sectional casings, which necessitate inconvenient and complicated stripping, is impossible on account of the great height of the structure.

The tiltable casing according to the invention is characterized substantially by casing panels which are mounted on a common, regular polygonal frame are each oscillatable around a pivot axle formed by pivot pins and can be arrested in swung out position by a stay.

An embodiment of the invention is illustrated by way of example in the accompanying drawing in which Fig. 1 is a section on line 1-1 of Fig. 2.

Fig. 2 is a. top plan view of Fig. 1.

Fig. 3 shows a form of use of the tiltable casing.

Fig. 4 is a modified form of construction.

Figs. 5 to 8 are further forms of construction.

The square frames 1 reinforced by diagonal struts 2 have on each corner a pivot axle 35 formed of pivot pins 3 for the casing boards 4. These casing boards 4 are mounted on the pivot pins 8 by means of lugs 5. The bars of the frame 1 have, if necessary projections 6 adapted to serve as abutm-ents for the casing boards or panels 4.

If the tiltable casing is metrical arrangement, the connected by ties 7 which extend through the masonry. If the casing is used on one side,

these ties only extend the necessary distance into the masonry. The frame 1 may also be made triangular, like the frame 8 shown in Fig. 4. Instead of a separate closed frame two hingedly interconnected section irons 9, on which the casing employed in syme0s,27s, and in Germany March 12, 1932.

panels 11, .12 are rigidly fixed. The triangular frame 13 shown in Fig. 7 carries casing panels 14, two of which are hingedly mounted at each of the corners of the frame,

the width'of the frame half the length of the frame bars.

the casing boards 16 are rigidly fixed on the triangular frame 15, and in Fig. 8 the casing boards 18 are hiiigedly mounted on the ti'iangular fram their width axis.

When empl e 17 so that the centre line of is at the same time their pivot oying the tiltable building casing according to the invention it is fitted in the position 20 shown in dotted lines for building the wall 19 divided into three sections shown in Fig. 1. When the zone I panels being equal to 1 In F ig. 6

has been rammed and finished, the frame 1 5 can be oscillated around'the pivot pins21 in the direction of the arrow 22 into the position shown in full lines in which after oscillating which might be omitted for example when producing a wall on a slope. After the zone III has been as the zones completed in the same manner I and II the frame is turned around the pivot pins 27 in the direction of the arrow 26, described is whereupon the operation above repeated from building zone to building zone, the height of which is naturally determined by the width of the casing panels 4. It

is evident that the wall ties must be displaced corresponding to the pivot 11 the manne pins 3 after or during the finishing of a zone. pivot pins 3 are I r above described walls of any desired height can be produced, saving large quantities of casing material.

When employing sliding construction casing a device is always required for winding up the individual casing panels. This method besides possessing economical disadvantages is also open to the objection that owing to the distorti 011s caused by the raising of the panels it is repeatedly necessary to level up in order to produce a perfect masonry. The tiltable constructional casing according to the invention avoids this objection and can at the same time carry or be constructed as an operating platform. The casing according to the invention can, as shown in Fig. 3, be employed also on curved surfaces, the panels being provided with a covering or padding 28. WVhen employing the triangular frame 8 shown in Fig. 4, the casing panels 29 are reinforced by stays 30. The wall ties 31 are embedded in the uppersurface of the concrete, so that they lie in the concrete when tilting the frame, which is preferably effected by a casing board which, being arranged displaced relative to the joints of the casing boards 4:, effects a connection therewith.

Fig. 5 shows a tiltable casing oscillatable around two points. It can be employed when on the opposite side of the masonry a tiltable constructional casing with rigid frame is arranged which effects the guiding and on which the casing of the rear side is support ed. It can be a-normal simple casing. The frame is employed only after displacing the wall ties 32 as is necessary as the masonry progresses. The operation above. described is analogous when employing the frame 13 or 17. The casing panel 14 or 18 are successively shifted on the masonry by oscillating, if necessary a stay 33 being interposed. The hinges of the tiltable constructional casing in all forms of construction do not come into contact with the concrete.

I claim i 1." A tiltable casingfor concrete constructions, comprising in combination a common regular polygonal frame, pivot pins forming and the casing panels are of a width equal to half the length of the sides of the frame,

two panels being hingedly mounted on a commonpivot point at each corner of the frame.

4. A tiltable casing as specified in claim 1, in which the panels are oscillatably mounted so that the pivot axles coincide with the .centre line of their width.

,; In testimony whereof I afiix my signature.

FRANZ EILER. 

